With the accelerated upgrading of electronic products, the number of waste circuit boards has surged. If the heavy metals such as lead, mercury, and hexavalent chromium contained in them are not handled properly, they will seriously pollute the environment and cause waste of scarce resources such as copper, gold, and silver. To achieve the dual goals of resource recycling and environmental protection, physical processing technology has become the mainstream solution in the industry due to its high efficiency and low pollution characteristics.
The physical processing method for handling waste circuit boards: 1. For those with electronic components, manual disassembly or automatic disassembly machine for circuit boards is required to separate the electronic components from the motherboard, and then use circuit board recycling equipment for disassembly and recycling; 2. Items without electronic components can be directly crushed and recycled. The circuit board recycling and processing equipment mainly adopts processes such as dry crushing, rotary vibration screening, airflow specific gravity sorting, pulse dust removal, and electrostatic sorting to ultimately separate copper powder and resin powder. Resin powder can also be reused as building material filler. In addition, this technology avoids the high pollution risk of wet smelting and significantly reduces the cost of environmental governance. Equipped with a pulse dust removal system throughout the process, effectively controlling dust pollution, reducing the release of harmful gases, and ensuring that the treatment process meets green standards.
With the upgrading of efficient crushing technology, circuit board recycling will move towards higher levels of automation and resource utilization, providing key technical support for the circular economy. In depth analysis of economic benefits can help promote the development and application of waste circuit board recycling technology.
